Is Clinton's 'What Happened' actually what happened?

Hillary Clinton's recounting of the 2016 campaign -- "What Happened" -- is out today. I reached out to The Hill's Amie Parnes and Jonathan Allen -- the authors of two bestselling books (here and here) about Clinton -- for some perspective about why Clinton decided to write about her latest loss and how accurate her assessment of, well, what happened, actually is. Our conversation, conducted via email and lightly edited for flow, is below....